Respiratory device filter



FIG. 1 is a perspective view of a first embodiment of a respiratorydevice filter, made according to the new design;

FIG. 2 is a front elevational view of the respiratory device filter ofFIG. 1;

FIG. 3 is a rear elevational view of the respiratory device filter ofFIG. 1;

FIG. 4 is a right side elevational view of the respiratory device filterof FIG. 1;

FIG. 5 is a left side elevational view of the respiratory device filterof FIG. 1;

FIG. 6 is a top plan view of the respiratory device filter of FIG. 1;

FIG. 7 is a bottom plan view of the respiratory device filter of FIG. 1;and,

FIG. 8 is a perspective view of a second embodiment of a respiratorydevice filter of FIG. 1, the only difference being the inclusion ofshading on the mouthpiece to contrast the color between the mouthpieceand the remainder body of the first embodiment, it being understood thatall other surfaces are the same as those of the first embodiment.

The broken line showing of lettering is included for the purpose ofillustrating an internal boundary with the line itself and the areawithin forming no part of the claimed design.

CLAIM The ornamental design for a respiratory device filter, as shownand described.